If the builder in good faith to createfoundation, then the house will reliably and for a long time serve its owner. As for the car, the automotive primer can also be considered the foundation for the subsequent painting work. Also, such compounds protect metal parts of the machine from the damaging effects of corrosion. Car owners who want to get a quality paintwork will never save on primers, because they are the foundation of everything.
What is a primer?
This is a special compound that is applied tobody before the final painting. This type of coatings differs from paints and autoenamels with higher adhesion with metal, plastic or putty. It is a reliable basis. Automotive primer - a whole series of products. There are several types of these compositions: epoxy-based primers, levelers, sealants and other mixtures.
Epoxy primer
Epoxy type - anti-corrosion composition.This type of primer is able to provide high-quality and reliable protective coating for steel. The epoxy primer contains special resins and high-quality additives. They can be used for all cars. Paint is applied directly to the composition. Epoxy primer for cars does not apply independently. It must be mixed with hardeners. Sometimes you can find these products in cans. Price from 350 rub. for 1.21 kg (brand Vika, Russia).
Reactive soils
These blends are also great in quality.anti-corrosion protection. The basis of the compositions are polyvinyl resins. Such automobile primer perfectly keeps on the most different materials. The high level of versatility can be explained by strong adhesion and high resistance to rust and corrosion. It is recommended to apply these materials in thin layers. Price - 427 rubles for 0.4 l(brand Novol, Poland).
Acrylic Compounds
Грунтовка автомобильная акриловая основана на one component. Such mixtures are applied by spraying with the help of special guns. These compounds allow for excellent adhesion to metal. Often use these soils for leveling surfaces. Among the advantages - quick drying. There are also two-component primer based on acrylic resins. This tool has a high viscosity and allows you to get a fairly thick coating.
Bicomponent formulations are great formasking significant and minor defects. Such soils have a high level of adhesion with different metals and corrosion resistance. Two-component acrylic primer can be applied to polyester-based fillers, as well as acrylic paints. Price - from 350 to 950 rubles. The volume of cans can be different - 1, 1.2 or 1.3 liters. Polish manufacturer Novol the cost is higher than the Russian Vika.
Plastic primers
This is a one component blend. Apply the composition also with a gun. It significantly improves the adhesion characteristics of acrylic lacquers and polyurethane coatings. Price - 276 rubles for 0.52 kg (Vika, Russia).
Passivating
These compounds contain chromates of variousmetals, as well as other substances, due to which the treated surface becomes almost impervious to moisture. This group includes such mixtures as GF-021, GF-017 and others. For example, the composition on the basis of lead is used to process and protect the bottom and wings from rust. Price - from 50 to 90 rubles per kilogram.
Protector blends
This product contains dust aluminum, zinc,lead. These metals have a lower threshold of sensitivity to rust than steel. Under external influence, the tread automotive primer will be the first to get damaged, and the metal will be protected. As an example - EP-057. The range of their prices is very wide - from 250 to 1000 rubles, depending on the manufacturer and the volume of the can.
Phosphating primer
These formulations contain phosphoric acid.When it interacts with steel, as a result, insoluble phosphates are formed. The primer lays down on a covering with a dense layer, differs in good adhesion. At the same time its thickness is the smallest of all existing. These include VL-02, VL-08, VL-023, VL-025. The mixture penetrates the metal to a depth of 0.05 microns. So increases the adhesion to the metal body. It is recommended to apply the composition in two layers. Price - 245 rubles for 0,8 kg (Vika).
Corrosion resistant primers
These are rust modifiers.It is recommended to apply them directly on the corrosion centers without any preliminary actions. Primer rust removes this rust. As a result, a strong film is created on the metal, which will protect the surface in the future. Price - 1000 rubles for 0,8 l (Polish brand Novol).
How to choose a primer?
It is necessary to choose a suitable product based onmaterial to work with. Naturally, there are other factors, but they are not too significant. The primers for metal parts are very different in composition from primers for plastic or wood. The composition of the mixture (and the primer is a mixture of several components) is necessarily indicated in the instructions. It must be carefully studied before you start using a particular composition.
Single-component products are actually suchnot at all. In any case, it will be a mixture, whether it is an epoxy primer for cars or a modifier. With regard to the functionality of a tool, it depends on the type. For example, acrylic blends are a practically universal solution. If you believe marketers, the range of their application is not limited. But it is best to work with those tools that create anti-corrosion protection and increase adhesion.
If you need to decide how to handle rustyplots, do not rely on the unique properties of modifiers. Primer rust will only help get rid of the corrosion itself. However, you will not be able to find out how deeply this product has penetrated into the metal. There is no guarantee that the amount of the mixture applied to the corroded site can turn rust into a resistant inert layer. In small areas with a low level of "responsibility", modifiers are justified. However, large areas need to be treated differently. As for the use of primer, it should be noted that it lies on the surface in an invisible layer.
Many motorists believe that the processprocessing is negligible. They neglect it, so they get cheap formulations. Such savings can lead to the need for repainting. Automotive primer, the price of which is suspiciously low (less than 100 rubles per barrel), may shrink. In this case there will be errors on the LPC layer. Specialists who are professionally engaged in painting work, prefer to use expensive mixtures. This saves both time and money.
How to apply?
Automotive soil is applied to earliersurface prepared for this. This operation should be carried out in rooms with good ventilation. Please note that these compounds are quite toxic. It is better to use a respirator. If the mixture is prepared, then the consistency should not clog the spray nozzle. If it is too thick, you can dilute it with a solvent. Too liquid product is also not very good. There may be runoff.
Before using freshly preparedcomposition on the car, it is better to check the intensity of its spreading on a different surface. For the treatment of small areas suitable automotive primer in cans. It does not need to be diluted and much easier to apply. Color is chosen so that it roughly coincides with a touch of paint, although it can be quite difficult. Unfortunately, it is rarely possible to achieve a complete match.
To achieve the similarity of colors in the primeradd paint. When the layer of soil is applied, in accordance with the manufacturer's instructions, it is necessary to give him time to dry. The treated surface should harden. For different types of soil drying can take from ten minutes to several hours. At the end of the process, sanding with fine-grained sandpaper of at least P800 is done. Grinding is performed without water. Most primers are highly hygroscopic, which can lead to additional drying time. After grinding you can start painting.
Conclusion
Priming is an important step in the work oncar painting. After applying the paint will fall much better on the surface, and the metal will be reliably protected from corrosion. Good result gives only good car primer. The price of the product must be expensive - from 300 rubles per spray. This will eliminate the risk of double work.
